The Israeli military has continued its "expanded ground operation" into Gaza, with bulldozers clearing paths and troops appearing to take up positions.

Military officials released video appearing to show tanks and bulldozers pushing through the rubble of destroyed buildings.

The footage, which could not be independently verified, also appeared to show ground troops patrolling in the dark.

The Israeli military struck about 300 targets, including Hamas compounds, during the last day, the Israel Defense Forces officials said Tuesday.

"Numerous Hamas terrorists have been eliminated," IDF said. "The IAF struck terrorist targets and infrastructure."

The strikes hit Hamas compounds inside underground tunnels, as well as posts for launching anti-tank missiles and rockets, IDF said.

Israel shared a short video on social media appearing to show explosions at sites throughout Gaza.

The military also said it had hit "Hezbollah terrorist infrastructure including weapons, posts and sites in Lebanon." The video and claims could not be independently verified.

Natalie Raanan, one of two American women released by Hamas on Oct. 20, has returned home to Chicago, the Consulate General of Israel to the Midwest announced Monday.

"I am relieved to see Natalie back home in Chicago. Her family members have been anxiously waiting for her return, and today I am sharing their happiness," Yinam Cohen, consul general of Israel to the Midwest, said in a statement.

"While we're celebrating Natalie's return, we remember the 239 hostages, among them babies, children, women, and the elderly, who are still held by Hamas in Gaza. This week, family members of those still held hostage by Hamas will be in Chicago to share their stories and call for their immediate release," Cohen's statement continued.

Raanan, 18, and her mother, Judith Tai Raanan, 59, were kidnapped by Hamas during the Oct. 7 massacre in Israel. They were held for nearly two weeks before they were released. Two Israeli women were released last week. More than 200 people are still being held hostage by Hamas.

-ABC News' Matt Foster and Danielle Jennings

One million people were pushed from the north of the Gaza Strip towards the south in the last three weeks, according to Philippe Lazzarini, the commissioner general for the United Nations Relief and Works Agency for Palestine Refugees.

This represents half of the population of Gaza, according to Lazzarini.

"I have said many times, and I will say it again, no place is safe in Gaza," he said during a briefing Monday.

Over 670,000 displaced people are currently in overcrowded UNRWA schools and buildings, according to Lazzarini.

-ABC News' Will Gretsky

Gaza's Jabalia refugee camp, the most populous refugee camp in the region, was hit by a second airstrike on Wednesday, according to the Hamas-run Gaza Health Ministry.

The Israel Defense Forces confirmed that on Wednesday, "based on precise intelligence, IDF fighter jets struck a Hamas command and control complex" in Jabalia, and that Hamas fighters were killed in the strike.

"Hamas deliberately builds its terror infrastructure under, around and within civilian buildings, intentionally endangering Gazan civilians," the IDF said. "The IDF has been urging Gazans in this neighborhood to evacuate as part of its efforts to mitigate harm to civilians. The IDF continues to call on all residents of northern Gaza and Gaza City to evacuate southwards to a safer area."

The IDF also took responsibility for the first strike on Tuesday, saying the blast killed a Hamas official who the IDF claimed was one of the leaders of the Oct. 7 attack on Israel.

The United Nations Human Rights Office said, "Given the high number of civilian casualties & the scale of destruction following Israeli airstrikes on Jabalia refugee camp, we have serious concerns that these are disproportionate attacks that could amount to war crimes."